While focusing at f/8-22, the ring "catches" or snags" on something, internal (mechanical in nature) momentarilythen continues. It sounds "mechanical, metallic"

Question edited for clarity, add maker.
Question moved from Cars and Trucks category.

No! Ring openings want to be nowhere near the ports as it is possible for them to catch, snap, snag and do a lot of damage. If the ports are at 12 and 6 on a clock face, you want the ring gaps to be a 3 and 9, and top one at 3, next ring at 9 etc. alternating, depending on 2 or 3 rings.

Fuses work or they don't, continuity or not. If it's bad, it is burnt out and not giving voltage, it doesn't work.

When you press the button to open the trunk, a solenoid pulls the catch, and the trunk opens and the catch remains open.

When you press down on the truck lid, the catch base is pressed mechanically and it locks shut.

Your issue is almost certainly 'Adjustment', the catch isn't going down low enough when you press or slam.

Open the trunk, use a screwdriver in the slot to close the catch. Get someone to open the trunk release and watch it open. It it does, it works. You need to slacken off the bolts on the catch or the keeper plate and move it closer.

Oh look, a RECALL!

2013 Ford Focus trunk latch recall Ford Motor Company (Ford) is recalling certain model year 2013-2017 Ford Focus hatchback vehicles manufactured February 14, 2012, to August 26, 2016 and equipped with a manual transmission. The hatchback of the affected vehicles may be unlatched with a single press of the interior latch release button.

2013 Ford Focus Recalls ' Cars.com

https://www.cars.com > ... > Safety & recalls > Ford > Focus
Search for: 2013 Ford Focus trunk latch recall

There is a video here.

https://www.google.com/search?q=2013+ford+focus+adjust+trunk+latch

..

increase the needle thread tension up a bit as it is too loose to pull the bobbin thread up properly
keep adjusting until both threads are at the middle of the materials being sewn

I had the same problem with my SAL-16105. It turned out that inside the lens the FOCUS DIFFERENTIAL RING (Artnr.: 321020202) was broken. The camera tries to move the focus from one end to the other when it is turned on (probably to check the functionality), but as the ring is broken, focus will never reach its end-point. Thus the camera continues to try to turn the mechanics futher until either the gear on the lens ring or one of the gears inside the lens will jump, making the clicking sounds. Another reason might be that one of the brushes ("focus brush") inside the lens that are used to signal the position of the focus to the camera electronics is damaged. (This might even lead to the mechanical destruction of the focus differential ring I think). I was able to repair my ring, but as I had to glue it, after a few months it failed again. I'm waiting for a replacement ring now.

mmmh... sounds like you on your own here. I found this page whilst looking for a solution to a stuck manual focus ring on my own 70-200mm sigma. The focus ring does not move beyond a millimeter or so, but the lens continues to work fine in auto focus.

Not sure what happened to it. If you found out how to fix his, do contact me.
Thanks

thermo switch on the side of the radiator must be faulty, pull the 2 wires off and connect them together, the fans will run continually if the switch was bad.

No extra batteries.

Usually this is a lens fault as the focusing gear is all in the lens. Clicking sounds as if a rear pinion has cracked. It's not uncomon in the 'prosumer' level lenses where plastic gears are used a lot.

It's just possible the fault is which the auto-manual switch. This usually has a mechanical clutch coupled to it which physically disconnects the gearbox from the focusing ring, as well as operating a switch to tell the camera to turn off the AF system.

That is the focusing ring. I'm guessing your camera is set to focus automatically (Little switch on the side of the lens should have settings for either AF or MF, or something similar.)

If its on AF, you don't need to adjust the focus ring.
However, if you have problems with the AF (sometimes it has trouble, especially in low light) you can switch it to MF, and focus manually by changing the ring.

As a general guideline, the more you twist to towards macro, it focuses closer and closer, and infinity futher away (if you're taking a shot of the moon, you want it on infinity)

This will need technical service eventually. Try temporary solution with Sellotape or similar

Full-time AF starts focusing when turned on and continues focusing without the shutter-release button pressed. This is usable to shorten the focusing time and to catch the moment. Continuous AF continues focusing while pressing the shutter release button partway down without focus lock.